1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
// SPDX-License-Identifier: GPL-2.0
#include "vmlinux.h"
#include <bpf/bpf_helpers.h>
#include <bpf/bpf_tracing.h>
#include <bpf/usdt.bpf.h>
#include "bpf_misc.h"
char _license[] SEC("license") = "GPL";
SEC("uprobe.session")
__success
int uprobe_sesison_return_0(struct pt_regs *ctx)
{
return 0;
}
SEC("uprobe.session")
__success
int uprobe_sesison_return_1(struct pt_regs *ctx)
{
return 1;
}
SEC("uprobe.session")
__failure
__msg("At program exit the register R0 has smin=2 smax=2 should have been in [0, 1]")
int uprobe_sesison_return_2(struct pt_regs *ctx)
{
return 2;
}